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Superradiant Neutrino Lasers from Radioactive Condensates

B. J. P. Jones1,* and J. A. Formaggio2,†

  • *Contact author: ben.jones@uta.edu
  • †Contact author: josephf@mit.edu
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Phys. Rev. Lett. 135, 111801 – Published 8 September, 2025

DOI: https://doi.org/10.1103/l3c1-yg2l

Abstract

Superradiance emerges from collective spontaneous emission in optically pumped gases, and is characterized by photon emission enhancements of up to 14N2 in an N atom system. The gain mechanism derives from correlations developed within the decay medium rather than from stimulated emission as in lasing, so an analog of this process should be possible for fermionic final states. We introduce here the concept of superradiant neutrino emission from a radioactive Bose Einstein condensate, which can form the basis for a superradiant neutrino laser. A plausible experimental realization based on a condensate of electron-capture isotope Rb83 could exhibit effective radioactive decay rates accelerated from 86.2 days to minutes in viably sized rubidium condensates of 106 atoms.

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Envisioning a Neutrino Laser

Published 8 September, 2025

A Bose-Einstein condensate of radioactive atoms could turn into a source of intense, coherent, and directional neutrino beams, according to a theoretical proposal.

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Fundamental Impossibility of a Superradiant Neutrino Laser

Yu-Kun Lu, Hanzhen Lin (林翰桢), and Wolfgang Ketterle
Phys. Rev. Lett. 137, 101804 (2026)

Article Text

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Phys. Rev. Lett. 135, 111801– Published 8 September, 2025
  • Received 16 December 2024
  • Accepted 8 July 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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